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Efficacy Tests Minimum Inhibitory Concentration (MIC) (In Vitro) Purpose: To determine the concentration of an antiseptic handwash which will inhibit the growth of bacteria.
Time Kill (In Vitro) Purpose: To measure the ability of an antiseptic handwash to reduce bacteria at different points of time exposure, e.g. 15 or 30 seconds.
Health Care Personnel Handwash Test (In Vivo) Purpose: To determine the ability of an antiseptic handwash to reduce bacteria on the hands after an actual handwash procedure using the marker organism (Serratia marcesans). FDA defines an antiseptic handwash as one which provides a greater than 99% reduction of the marker organism after a single handwash and a greater than 99.9% reduction after the 10th handwash.
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